"Didn't use(d) to be"

Tim Leonard sent along the Nov. 2 User Friendly strip, with a question: Tim wrote: For me, "didn't used to be" is obligatory, but awkward. I Googled "didn't use to be" and found this page in which several people assert that only "didn't use to be" is correct, with a supporting analysis (but no statistical … Continue reading "Didn't use(d) to be"